Dan has 4 shelves.He has exactly 10 books on each shelf.Judy has 10 shelves. She has exactly 4 books on each shelf. Who has more books?

2 answers

10 * 4 = 4 * 10
Dan 10 books x 4 shelves=40
Judy 4 books x 10 shelves=40

They have the same amount of books